High-power short-wave tangent switch and antenna unit

Abstract

The invention discloses a high-power short-wave tangent switch and an antenna unit. The tangent switch comprises a frame, a rotary switching contact device, a fixed contact device and a feeder device, the rotary switching contact device can rotate in the frame, and the feeder device is connected with the fixed contact device; and the fixed contact devices are arranged in the frame around the rotary switching contact device, and when the rotary switching contact device rotates, the rotary switching contact device is connected with the fixed contact devices at different positions, so that the feeder system is switched among different phases. According to the high-power short-wave tangent switch and the antenna unit disclosed by the invention, a feeder system can be switched among different phases.

Description

Technical Field

[0001] The present invention relates to the technical field of antenna switches, and particularly to a high-power short-wave tangent switch and an antenna unit. Background Art

[0002] In order to increase the near and medium-range coverage of short-wave broadcast signals and reduce the near-region coverage blind area of short-wave radio stations caused by the inability to cover the near region during sky-wave propagation. Usually, a switching switch is configured on the feeder transmission line path at the low-frequency end to change the beam phase of some antenna units. Using the principle of phased array space synthesis, the antenna beam is controlled to point upward, and a higher elevation angle beam can be formed to achieve the coverage of the radio signal in a region closer to the antenna position. During the operation of the short-wave broadcast system, the terrain and landforms in different signal emission directions are different, and the beam elevation angles to be adjusted are not the same.

[0003] At present, most switching switches only have one switching mode. In order to achieve different beam elevation angles, multiple switching switches need to be equipped on the feeder transmission path and controlled differently. This method not only increases the equipment quantity, economic cost, and reduces the reliability of the system, but also raises the requirement for the installation space, makes the structure layout complex, and is inconvenient for maintenance.

[0004] In addition, one type of existing switching switch uses a U-shaped elastic piece with contacts to firmly clamp a moving piece in a knife shape. When the moving piece rotates, it passes through the center of the U-shaped groove of the fixed piece to complete the switching. Due to assembly errors and the instability of the metal elastic piece, poor contact often occurs, causing the contacts to burn out and posing a safety hazard. Another type uses a form of a rotating swing arm contacting the fixed piece to complete the switching. This structure will form an eccentric structure between the swing arm and the rotating shaft. During the rotation process, the torque of the swing arm on the rotating shaft changes with the angle, making it easy for the switching action to be uneven.

[0005] In the prior art, a utility model patent with the patent publication number CN209913043U, a high-power short-wave antenna phase conversion switch, uses a cylindrical contact elastic piece. When it contacts and presses against a metal block, the beryllium bronze cylinder deforms and closely contacts the contact block, and a larger contact surface is obtained, reducing the contact resistance. However, the swing arm and the rotating shaft in the prior art have an eccentric structure. Summary of the Invention

[0006] The technical problem to be solved by the present invention is: to solve the problem that in the prior art, in order to achieve different beam elevation angles, multiple switching switches are equipped on the feeder transmission path, increasing the equipment quantity, economic cost, and reducing the reliability of the system.

[0007] To solve the above technical problem, the present invention provides the following technical solutions:

[0008] A high-power short-wave tangent switch, comprising: a frame 100, a rotary switching contact device 200, a fixed contact device 300, and a feeder device 400; the rotary switching contact device 200 can rotate within the frame 100, the feeder device 400 is connected to the fixed contact device 300; and the fixed contact device 300 is arranged within the frame 100 surrounding the rotary switching contact device 200. When the rotary switching contact device 200 rotates, it is connected to the fixed contact device 300 at different positions, realizing the switching of the feeder system between different phases.

[0009] Advantages: Through the rotary switching contact device, the feeder system can be switched between different phases. The two radio frequency signals passing through the switching switch complete the change of the phase during the transmission process, thereby raising the antenna radiation elevation angle and achieving the "blind spot filling" effect for short and medium ranges. The amount of change in the phase of the radio frequency signal by the switching switch is different in different working modes, and the elevation amount of the antenna radiation elevation angle also changes accordingly, so as to achieve the "blind spot filling" effect under different terrains and landforms.

[0010] In an embodiment of the present invention, the rotary switching contact device 200 includes a power device 210, a rotary shaft 220, a turntable 230, and an angle detection device 240; the power device 210 is fixedly located outside the frame 100, the rotary shaft 220 is located within the frame 100 and is connected to the output end of the power device 210; the turntable 230 is installed on the rotary shaft 220, and the angle detection device 240 is fixedly located at the end of the rotary shaft 220; the power device 210 drives the rotary shaft 220 to rotate, and at the same time drives the turntable 230 and the angle detection device 240 to rotate in the same direction, and the angle detection device 240 feeds back the rotation angle information of the rotary shaft 220.

[0011] In an embodiment of the present invention, the turntable 230 has a regular pentagon structure and is provided in a split manner, including a first turntable 231 and a second turntable 232; each turntable includes an insulating dielectric block 2331, a connecting plate 2332, a mounting block 2333, and a contact spring piece 2334;

[0012] The insulating dielectric blocks 2331 of the two turntables are symmetrically arranged;

[0013] The "L"-shaped connecting plate 2332 of each turntable is fixedly located on the outer edge of the insulating dielectric block 2331 and wraps one corner of the insulating dielectric block 2331; the first ends of the connecting plates 2332 of the two turntables are arranged at a certain angle with the axis hole of the turntable 230 as the origin.

[0014] At both ends of each connecting plate 2332, mounting blocks 2333 are provided, and contact spring pieces 2334 are detachably connected to the mounting blocks 2333, and the contact spring pieces 2334 on the mounting blocks 2333 are arranged at a certain angle;

[0015] When the turntable 230 rotates, the center of gravity of the turntable 230 coincides with the center of gravity of the rotating shaft 220, and at each rotation angle, the torque on the rotating shaft 220 is consistent.

[0016] In an embodiment of the present invention, the contact spring pieces 2334 on each connecting plate 2332 are mounted in a double layer, and the ends of the contact spring pieces 2334 are in a finger-like structure.

[0017] In an embodiment of the present invention, the fixed contact device 300 includes a first fixed contact device 310, a second fixed contact device 320, a third fixed contact device 330, a fourth fixed contact device 340, and a fifth fixed contact device 350; the first fixed contact device 310 to the fifth fixed contact device 350 are located on a circumference centered on the rotating shaft 220 and with a radius equal to the maximum distance from the end of the contact spring piece 2334 to the rotating shaft 220 minus the compression amount of the contact spring piece 2334, and are evenly distributed; and the fourth fixed contact device 340 and the fifth fixed contact device 350 are connected by a shorting plate 3450.

[0018] In an embodiment of the present invention, each fixed contact device 300 includes an electrode contact block 312 and a porcelain rod 303; the electrode contact block 312 includes a fixed clamp 301 and an arc block 302; a non-contact surface A of the fixed clamp 301 protrudes to form a lug 3011, and at the same time, a straight-through semi-cylindrical groove 3012 is provided on the non-contact surface A of the fixed clamp 301, and the straight-through semi-cylindrical groove 3012 passes through the lug 3011; the arc block 302 is fixedly located on the non-contact surface A of the fixed clamp 301, and a semi-circular convex groove 3021 is provided on the arc block 302, and the semi-circular convex groove 3021 and the straight-through semi-cylindrical groove 3012 overlap to form a porcelain rod through hole 3123, and the porcelain rod 303 passes through the porcelain rod through hole 3123 and is connected to the frame 100.

[0019] In an embodiment of the present invention, the contact surface B of the fixed clamp 301 faces the contact spring piece 2334, and the contact surface B of the fixed clamp 301 is arranged in an arc shape.

[0020] In an embodiment of the present invention, an installation hole 3022 is provided on the arc block 302, and through the installation hole 3022, the fixed contact device 300 is detachably connected to the feeder device 400; the feeder device 400 includes a feeder input interface 410, a first feeder 420, a second feeder 430, and a feeder output interface 440;

[0021] Wherein, the first fixed contact device 310 is connected to the feeder input interface 410, the second fixed contact device 320 is connected to one end of the first feeder 420, the third fixed contact device 330 is connected to the other end of the first feeder 420 and the second feeder 430, the fourth fixed contact device 340 is connected to the second feeder 430, and the fifth fixed contact device 350 is connected to the feeder output interface 440.

[0022] The present invention also provides an antenna unit, including the high-power short-wave tangent switch, a power divider 500, a first antenna unit 610, a second antenna unit 620, a third antenna unit 630, and a fourth antenna unit 640 as described above; wherein, the feeder input interfaces 410 in two groups of feeder devices 400 are connected to the power divider 500, and the first antenna unit 610 and the second antenna unit 620 are connected; the third antenna unit 630 and the fourth antenna unit 640 are respectively connected to the feeder output interfaces 440 in two groups of feeder devices 400;

[0023] The radio frequency signal is divided into two paths by the power divider 500, one path of the radio frequency signal is directly transmitted to the first antenna unit 610 and the second antenna unit 620; the other path of the radio frequency signal is transmitted to the third antenna unit 630 and the fourth antenna unit 640 through the switching switch.

[0024] In an embodiment of the present invention, the high-power short-wave tangent switch includes four working modes,

[0025] The first working mode: the feeder input interface 410 receives a radio frequency signal, and the radio frequency signal is transmitted along the connecting plate 2332 on the second turntable 232 to the first feeder 420, transmitted through the first feeder 420 to the second feeder 430, and then transmitted through the shorting plate 3450 and the connecting plate 2332 on the first turntable 231 to the feeder output interface 440, thereby affecting the corresponding antenna unit and realizing the first beam phase change;

[0026] The second working mode: The control system sends an instruction to the rotary switching contact device 200 to drive the rotary shaft 220 to rotate counterclockwise. The angle detection device 240 feeds back the rotation angle of the rotary shaft 220 to the control system. When the rotary shaft 220 rotates to the specified position, it stops rotating; the feeder input interface 410 receives a radio frequency signal, and the radio frequency signal is transmitted along the connecting plate 2332 on the first turntable 231 to the feeder output interface 440, and then output to the corresponding antenna unit to achieve the second beam phase change;

[0027] The third working mode: The control system sends an instruction to the rotary switching contact device 200 to drive the rotary shaft 220 to rotate counterclockwise. The angle detection device 240 feeds back the rotation angle of the rotary shaft 220 to the control system. When the rotary shaft 220 rotates to the specified position, it stops rotating; the feeder input interface 410 receives a radio frequency signal, and the radio frequency signal is transmitted along the connecting plate 2332 on the first turntable 231 to the first feeder 420, and then transmitted to the feeder output interface 440 through the first feeder 420, the connecting plate 2332 and the shorting plate 3450 on the second turntable 232, and then output to the corresponding antenna unit to achieve the third beam phase change;

[0028] The fourth working mode: The feeder input interface 410 receives a radio frequency signal, and the fixed contact device 300 connected to the feeder input interface 410 is not connected to the rotary switching contact device 200, and the transmission link is in a disconnected state. At this time, the radio frequency signal cannot be transmitted to the corresponding antenna unit.

[0029] Compared with the prior art, the beneficial effects of the present invention are: multiple switching modes can be realized, and it has the advantages of simple structure, gentle switching action, reliable structure, and convenient maintenance. Description of the Drawings

[0030] Figure 1 Schematic diagram of a high-power short-wave tangent switch according to an embodiment of the present invention.

[0031] Figure 2 and Figure 3 Schematic diagram of the tangent switch at different angles according to an embodiment of the present invention.

[0032] Figures 4 to 6 Schematic diagram of the turntable according to an embodiment of the present invention.

[0033] Figure 7 and Figure 8 Schematic diagram of the fixed contact device according to an embodiment of the present invention.

[0034] Figure 9 Schematic diagram of Embodiment 2 of the present invention.

[0035] Figures 10 to 13 Schematic diagrams of four working modes of the change-over switch according to the embodiments of the present invention. Detailed implementation manners

[0036] For the convenience of those skilled in the art to understand the technical solution of the present invention, the technical solution of the present invention will be further described below with reference to the accompanying drawings of the specification.

[0037] The terms "first" and "second" are only used for descriptive purposes, and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0038] Embodiment 1

[0039] Please refer to Figure 1 As shown, the present invention provides a high-power short-wave tangent switch, which includes a frame 100, a rotary switching contact device 200, a fixed contact device 300, and a feeder device 400. The rotary switching contact device 200 can rotate within the frame 100. The feeder device 400 is connected to the fixed contact device 300, and the fixed contact device 300 is arranged within the frame 100 surrounding the rotary switching contact device 200. When the rotary switching contact device 200 rotates, it is connected to the fixed contact device 300 at different positions, so as to realize the switching of the feeder system between different phases.

[0040] Please refer to Figures 1 to Figure 6 As shown, in an embodiment of the present invention, the rotary switching contact device 200 includes a power device 210, a rotary shaft 220, a turntable 230, and an angle detection device 240. The power device 210 is fixedly located outside the frame 100. The rotary shaft 220 is located within the frame 100 and is connected to the output end of the power device 210. The turntable 230 is mounted on the rotary shaft 220, and the angle detection device 240 is fixedly located at the end of the rotary shaft 220. The power device 210 drives the rotary shaft 220 to rotate, and at the same time drives the turntable 230 and the angle detection device 240 to rotate in the same direction. The angle detection device 240 feeds back the rotation angle information of the rotary shaft 220. In this embodiment, two sets of turntables 230 are located on the rotary shaft 220 and present a certain distance.

[0041] Among them, the power device 210 includes a servo motor 211 and a speed reducer 212. The speed reducer 212 is connected to the output end of the servo motor 211, and the rotating shaft 220 is connected to the output end of the speed reducer 212. The servo motor 211 and the speed reducer 212 are located outside the frame 100, and the rotating shaft 220 is located inside the frame 100. The speed reducer 212 has both electric drive and hand-crank drive functions, and can be manually intervened in the event of a failure of the servo system or a power outage. The angle detection device 240 is an encoder.

[0042] The turntable 230 has a regular pentagon structure and is provided in a split form, including a first turntable 231 and a second turntable 232. Each turntable includes an insulating dielectric block 2331, a connecting plate 2332, a mounting block 2333, and a contact spring piece 2334. The insulating dielectric blocks 2331 of the two turntables are symmetrically arranged, and the two insulating dielectric blocks 2331 are spliced to form a regular pentagon, and the rotating shaft 220 passes through the center of the regular pentagon. Specifically, the material of the two insulating dielectric blocks 2331 is epoxy glass cloth. The "L"-shaped connecting plate 2332 of each turntable is fixedly located on the outer edge of the insulating dielectric block 2331 and wraps one corner of the insulating dielectric block 2331. The first ends of the connecting plates 2332 of the two turntables are arranged at a certain angle with the axis hole of the turntable 230 as the origin. In this embodiment, the angle is 144°.

[0043] Mounting blocks 2333 are provided at both ends of each connecting plate 2332, and the contact spring pieces 2334 are detachably connected to the mounting blocks 2333, and the contact spring pieces 2334 on the mounting blocks 2333 are arranged at a certain angle. In this embodiment, the angle between the contact spring pieces 2334 on two adjacent mounting blocks 2333 is 72°. Specifically, the materials of the connecting plate 2332 and the mounting block 2333 are brass, which has good electrical conductivity. The contact spring piece 2334 is formed by bending beryllium bronze, and the end of the contact spring piece 2334 is designed into a finger-like structure, which can ensure smooth switching action. Two groups of mounting blocks 2333 are provided at both ends of each connecting plate 2332, so that the contact spring pieces 2334 are installed in a double layer, which can ensure good contact between the contact spring pieces 2334 and the fixed contact device 300. Through the above settings, when the turntable 230 rotates, the center of gravity of the turntable 230 coincides with the center of gravity of the rotating shaft 220, and at each rotation angle, the torque on the rotating shaft 220 is consistent, ensuring smooth switching action.

[0044] Please refer to Figures 1 to Figure 8As shown in the figure, in an embodiment of the present invention, the fixed contact device 300 includes a first fixed contact device 310, a second fixed contact device 320, a third fixed contact device 330, a fourth fixed contact device 340, and a fifth fixed contact device 350. The first fixed contact device 310 to the fifth fixed contact device 350 are located on a circumference centered on the rotation axis 220, with a radius R equal to the maximum distance from the end of the contact reed 2334 to the rotation axis 220 minus the compression amount of the contact reed 2334, and are evenly distributed. And the fourth fixed contact device 340 and the fifth fixed contact device 350 are connected by a shorting plate 3450. Among them, the compression amount of the contact reed 2334 is 3 mm, and the compression amount can be adjusted adaptively according to toggle switches of different sizes. Similarly, the bending directions of the ends of multiple contact reeds 2334 are the same, and the ends of multiple contact reeds 2334 are all on the circumference. In this embodiment, on the rotation axis 220, two sets of turntables 230 are provided, and each set of turntables 230 is equipped with a set of fixed contact devices 300 and feeder devices 400 to form two toggle switches.

[0045] Each fixed contact device 300 includes an electrode contact block 312 and a porcelain rod 303. The electrode contact block 312 includes a fixed clamp 301 and an arc block 302. The non-contact surface A of the fixed clamp 301 protrudes to form a lug 3011. At the same time, a straight-through semi-cylindrical groove 3012 is also provided on the non-contact surface A of the fixed clamp 301, and the straight-through semi-cylindrical groove 3012 passes through the lug 3011. The arc block 302 is fixedly located on the non-contact surface A of the fixed clamp 301, and a semi-circular convex groove 3021 is provided on the arc block 302. The semi-circular convex groove 3021 and the straight-through semi-cylindrical groove 3012 overlap to form a porcelain rod through-hole 3123. After the porcelain rod 303 passes through the porcelain rod through-hole 3123, it is connected to the frame 100. The contact surface B of the fixed clamp 301 faces the contact reed 2334, and the contact surface B of the fixed clamp 301 is arranged in an arc shape to further ensure smooth switching operation.

[0046] The arc block 302 is provided with a mounting hole 3022. Through the mounting hole 3022, the fixed contact device 300 is detachably connected to the feeder device 400. The feeder device 400 includes a feeder input interface 410, a first feeder 420, a second feeder 430, and a feeder output interface 440. Among them, the first fixed contact device 310 is connected to the feeder input interface 410, the second fixed contact device 320 is connected to one end of the first feeder 420, the third fixed contact device 330 is connected to the other end of the first feeder 420 and the second feeder 430, the fourth fixed contact device 340 is connected to the second feeder 430, and the fifth fixed contact device 350 is connected to the feeder output interface 440. Among them, the first feeder 420 and the second feeder 430 are two sections of feeders, and the length values of the feeders can be specifically designed according to the phase requirements of the beam as needed.

[0047] Embodiment 2

[0048] Please refer to Figures 1 to 12 As shown, the present invention further provides an antenna unit, including Embodiment 1, a power divider 500, a first antenna unit 610, a second antenna unit 620, a third antenna unit 630, and a fourth antenna unit 640. Among them, the feeder input interface 410 in the two groups of feeder devices 400 is connected to the power divider 500, and the first antenna unit 610 and the second antenna unit 620 are connected. The third antenna unit 630 and the fourth antenna unit 640 are respectively connected to the feeder output interfaces 440 in the two groups of feeder devices 400.

[0049] The radio frequency signal is divided into two paths by the power divider 500. One path of the radio frequency signal is directly transmitted to the first antenna unit 610 and the second antenna unit 620, and the other path of the radio frequency signal is transmitted to the third antenna unit 630 and the fourth antenna unit 640 through the switching switch. The two paths of radio frequency signals passing through the switching switch complete the change of the phase during the transmission process, thereby raising the antenna radiation elevation angle and achieving the "blind spot filling" effect in the near and medium ranges. The amount of change in the phase of the radio frequency signal is different in different working modes, and the elevation amount of the antenna radiation elevation angle also changes accordingly, so as to achieve the "blind spot filling" effect under different terrains and landforms.

[0050] The high-power short-wave tangent switch includes four working modes. The first working mode: The feeder input interface 410 receives a radio frequency signal, and the radio frequency signal is transmitted along the connecting plate 2332 on the second turntable 232 to the first feeder 420, transmitted through the first feeder 420 to the second feeder 430, and then transmitted through the short-circuit plate 3450 and the connecting plate 2332 on the first turntable 231 to the feeder output interface 440, thereby affecting the corresponding antenna unit and realizing the first beam phase change, as shown in Figure 10 shown.

[0051] The second working mode: The control system sends an instruction to the rotary switching contact device 200 to drive the rotary shaft 220 to rotate counterclockwise. The angle detection device 240 feeds back the rotation angle of the rotary shaft 220 to the control system, and stops rotating when the rotary shaft 220 rotates to the specified position; the feeder input interface 410 receives a radio frequency signal, and the radio frequency signal is transmitted along the connecting plate 2332 on the first turntable 231 to the feeder output interface 440, and then output to the corresponding antenna unit to realize the second beam phase change, as shown in Figure 11 shown.

[0052] The third working mode: The control system sends an instruction to the rotary switching contact device 200 to drive the rotary shaft 220 to rotate counterclockwise. The angle detection device 240 feeds back the rotation angle of the rotary shaft 220 to the control system. When the rotary shaft 220 rotates to the specified position, it stops rotating. The feeder input interface 410 receives a radio frequency signal, and the radio frequency signal is transmitted along the connecting plate 2332 on the first turntable 231 to the first feeder 420, and then transmitted to the feeder output interface 440 through the first feeder 420, the connecting plate 2332 on the second turntable 232 and the shorting plate 3450, and then output to the corresponding antenna unit to achieve the third beam phase change, as shown in Figure 12 shown.

[0053] In the fourth working mode, the feeder input interface 410 receives a radio frequency signal, and the fixed contact device 300 connected to the feeder input interface 410 is not connected to the rotary switching contact device 200, and the transmission link is in a disconnected state. At this time, the radio frequency signal cannot be transmitted to the corresponding antenna unit, as shown in Figure 13 shown.

[0054] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention, and any reference signs in the claims should not be regarded as limiting the claims involved.

[0055] The above-described embodiments merely represent the implementation manners of the invention. The protection scope of the present invention is not limited to the above-described embodiments. For those skilled in the art, without departing from the concept of the present invention, several deformations and improvements can be made, and these all belong to the protection scope of the present invention.

Claims

1. A high-power short-wave tangent switch, characterized in that: include: A frame (100), a rotating switching contact device (200), a fixed contact device (300) and a feeder device (400); the rotating switching contact device (200) can rotate in the frame (100), and the feeder device (400) is connected to the fixed contact device (300); and the fixed contact device (300) is arranged in the frame (100) around the rotating switching contact device (200), and when the rotating switching contact device (200) rotates, it is connected to the fixed contact devices (300) at different positions, so as to realize switching of the feeder system between different phases.

2. The high-power short-wave tangent switch according to claim 1 is characterized in that: The rotary switching contact device (200) comprises a power device (210), a rotating shaft (220), a rotating disk (230) and an angle detection device (240); the power device (210) is fixedly located outside the frame (100), the rotating shaft (220) is located inside the frame (100) and is connected to the output end of the power device (210); the rotating disk (230) is installed on the rotating shaft (220), and the angle detection device (240) is fixedly located at the end of the rotating shaft (220); the power device (210) drives the rotating shaft (220) to rotate, and at the same time drives the rotating disk (230) and the angle detection device (240) to rotate in the same direction, and the angle detection device (240) feeds back the rotation angle information of the rotating shaft (220).

3. The high-power short-wave tangent switch according to claim 2 is characterized in that: The rotating disk (230) is a regular pentagonal structure, and is arranged in a split manner, comprising a first rotating disk (231) and a second rotating disk (232); each rotating disk comprises an insulating medium block (2331), a connecting plate (2332), a mounting block (2333) and a contact spring (2334); The insulating medium blocks (2331) of the two rotating disks are symmetrically arranged; The "L"-shaped connecting plate (2332) of each rotating disk is fixedly located on the outer edge of the insulating medium block (2331) and wraps around a corner of the insulating medium block (2331); the head ends of the connecting plates (2332) of the two rotating disks are arranged at a certain angle with the shaft hole of the rotating disk (230) as the origin; Both ends of each connecting plate (2332) are provided with mounting blocks (2333), and the mounting blocks (2333) are detachably connected to the contact springs (2334), and the contact springs (2334) on the mounting blocks (2333) are arranged at a certain angle; When the turntable (230) is rotated, the center of gravity of the turntable (230) coincides with the center of gravity of the rotating shaft (220), and the torque on the rotating shaft (220) is consistent at each rotation angle.

4. The high-power short-wave tangent switch according to claim 3 is characterized in that: The contact spring (2334) on each connecting plate (2332) is installed in double layers, and the end of the contact spring (2334) is in a finger-like structure.

5. The high-power short-wave tangent switch according to claim 3 is characterized in that: The fixed contact device (300) comprises a first fixed contact device (310), a second fixed contact device (320), a third fixed contact device (330), a fourth fixed contact device (340) and a fifth fixed contact device (350); the first fixed contact device (310) to the fifth fixed contact device (350) are located on a circle with the rotating shaft (220) as the center and the maximum distance from the end of the contact spring (2334) to the rotating shaft (220) minus the compression amount of the contact spring (2334) as the radius, and are evenly distributed; and the fourth fixed contact device (340) and the fifth fixed contact device (350) are connected via a short-circuit plate (3450).

6. The high-power short-wave tangent switch according to claim 5, characterized in that: Each fixed contact device (300) comprises an electrode contact block (312) and a porcelain rod (303); the electrode contact block (312) comprises a fixed clamp (301) and an arc block (302); the non-contact surface (A) of the fixed clamp (301) is protruding to form a lug (3011), and a straight semi-cylindrical groove (3012) is also provided on the non-contact surface (A) of the fixed clamp (301), and the straight semi-cylindrical groove (3012) is 12) passes through the lug (3011); the arc block (302) is fixedly located on the non-contact surface (A) of the fixing clamp (301), and a semicircular convex groove (3021) is provided on the arc block (302), the semicircular convex groove (3021) and the straight semi-cylindrical groove (3012) overlap to form a porcelain rod through hole (3123), and the porcelain rod (303) passes through the porcelain rod through hole (3123) and is connected to the frame (100).

7. The high-power short-wave tangent switch according to claim 6, characterized in that: The contact surface (B) of the fixing clamp (301) faces the contact spring (2334), and the contact surface (B) of the fixing clamp (301) is arranged in an arc shape.

8. The high-power short-wave tangent switch according to claim 6, characterized in that: The arc block (302) is provided with a mounting hole (3022), through which the fixed contact device (300) and the feeder device (400) are detachably connected; the feeder device (400) comprises a feeder input interface (410), a first feeder (420), a second feeder (430) and a feeder output interface (440); Wherein, the first fixed contact device (310) is connected to the feeder input interface (410), the second fixed contact device (320) is connected to one end of the first feeder (420), the third fixed contact device (330) is connected to the other end of the first feeder (420) and the second feeder (430), the fourth fixed contact device (340) is connected to the second feeder (430), and the fifth fixed contact device (350) is connected to the feeder output interface (440).

9. An antenna unit, characterized in that: The invention comprises a high-power short-wave tangent switch, a power divider (500), a first antenna unit (610), a second antenna unit (620), a third antenna unit (630) and a fourth antenna unit (640) as described in any one of claims 1 to 8; wherein the feeder input interface (410) in the two groups of feeder devices (400) is connected to the power divider (500), and the first antenna unit (610) and the second antenna unit (620) are connected; the third antenna unit (630) and the fourth antenna unit (640) are respectively connected to the feeder output interface (440) in the two groups of feeder devices (400); The radio frequency signal is divided into two paths through the power divider (500), one path of the radio frequency signal is directly transmitted to the first antenna unit (610) and the second antenna unit (620); and the other path of the radio frequency signal is transmitted to the third antenna unit (630) and the fourth antenna unit (640) through a switching switch.

10. The antenna unit according to claim 9, characterized in that The high-power short-wave tangent switch includes four working modes: The first working mode: the feeder input interface (410) receives a radio frequency signal, the radio frequency signal is transmitted along the connecting plate (2332) on the second rotating disk (232) to the first feeder (420), transmitted to the second feeder (430) through the first feeder (420), and then transmitted to the feeder output interface (440) through the short-circuit plate (3450) and the connecting plate (2332) on the first rotating disk (231), thereby affecting the corresponding antenna unit to achieve the first beam phase change; The second working mode: the control system sends a command to the rotation switching contact device (200), driving the rotating shaft (220) to rotate counterclockwise, the angle detection device (240) feeds back the rotation angle of the rotating shaft (220) to the control system, and the rotating shaft (220) stops rotating when it rotates to a specified position; the feeder input interface (410) receives a radio frequency signal, and the radio frequency signal is transmitted to the feeder output interface (440) along the connecting plate (2332) on the first rotating disk (231), and then output to the corresponding antenna unit, thereby realizing the second beam phase change; The third working mode: the control system sends a command to the rotation switching contact device (200) to drive the rotating shaft (220) to rotate counterclockwise, the angle detection device (240) feeds back the rotation angle of the rotating shaft (220) to the control system, and the rotating shaft (220) stops rotating when it rotates to a specified position; the feeder input interface (410) receives a radio frequency signal, and the radio frequency signal is transmitted to the first feeder (420) along the connecting plate (2332) on the first rotating disk (231), and is transmitted to the feeder output interface (440) through the first feeder (420), the connecting plate (2332) on the second rotating disk (232) and the short-circuit plate (3450), and is then output to the corresponding antenna unit to achieve the third beam phase change; In the fourth working mode, the feeder input interface (410) receives a radio frequency signal, and the fixed contact device (300) connected to the feeder input interface (410) is not connected to the rotating switching contact device (200), and the transmission link is in a disconnected state. At this time, the radio frequency signal cannot be input to the corresponding antenna unit.

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